Home / 7,345.28-11,014.40-3,643.20

Finding the Fourth Proportional to 7,345.28, 11,014.40 and 3,643.20

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Solution

The fourth proportional to 7,345.28, 11,014.40 and 3,643.20 is: 5,463.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.28 : 11,014.40 = 3,643.20 : x
  2. Step 2: Convert to fraction form
    7,345.28/11,014.40 = 3,643.20/x
  3. Step 3: Cross multiply
    7,345.28x = 11,014.40 × 3,643.20
  4. Step 4: Simplify right side
    7,345.28x = 40,127,662.08
  5. Step 5: Solve for x
    x = 40,127,662.08/7,345.28
  6. Step 6: Final answer
    x = 5,463.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.